on tuesday we're looking at a memorial, which we're going to see president obama at, which is in a big football stadium, soccer stadium and what is also key about that, there won't be tickets issued. people will be invited. they can come because this is going to be a very public event. you can hear people starting to sing behind me. everybody feels that this is their funeral, too. and that's also going to be the key with that state funeral on sunday. just think about it, it's going to be the largest state funeral probably in recent memory in one of the most remote parts in south africa, under a tent in the hills where nelson mandela grew up. from a security point of view, both events will be very, very challenging. >> we'll continue to follow it all weekend. let us know what you think on twitter. tweet us using hash tag "ac 360." we'll have a remarkable conversation with legendary maya angelou. i talked to her before the broadcast and the nelson mandela you might not have known. we are used to seeing him as a saint, ghondi like and he was a fierce fighter. those facets of his life when